./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/reducercommutativity/avg40-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/reducercommutativity/avg40-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 21c974f13172a377e01c3d90378bf51a06f0d50f73d7b77ee448dcdb2047e228 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 02:29:10,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 02:29:10,406 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 02:29:10,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 02:29:10,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 02:29:10,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 02:29:10,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 02:29:10,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 02:29:10,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 02:29:10,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 02:29:10,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 02:29:10,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 02:29:10,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 02:29:10,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 02:29:10,448 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 02:29:10,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 02:29:10,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 02:29:10,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 02:29:10,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 02:29:10,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 02:29:10,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 02:29:10,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 02:29:10,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 02:29:10,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 02:29:10,454 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 02:29:10,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 02:29:10,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 02:29:10,455 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 02:29:10,455 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 02:29:10,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 02:29:10,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 02:29:10,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 02:29:10,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 02:29:10,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 02:29:10,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 02:29:10,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 02:29:10,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 02:29:10,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 02:29:10,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 02:29:10,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 02:29:10,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 02:29:10,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 02:29:10,458 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21c974f13172a377e01c3d90378bf51a06f0d50f73d7b77ee448dcdb2047e228 [2024-11-16 02:29:10,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 02:29:10,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 02:29:10,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 02:29:10,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 02:29:10,725 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 02:29:10,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/avg40-2.i [2024-11-16 02:29:12,154 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 02:29:12,332 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 02:29:12,333 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/avg40-2.i [2024-11-16 02:29:12,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845e960c6/f816f065a46e4f658a3733f82ac27728/FLAG127420c48 [2024-11-16 02:29:12,351 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/845e960c6/f816f065a46e4f658a3733f82ac27728 [2024-11-16 02:29:12,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 02:29:12,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 02:29:12,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 02:29:12,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 02:29:12,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 02:29:12,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e854d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12, skipping insertion in model container [2024-11-16 02:29:12,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,386 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 02:29:12,596 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/avg40-2.i[1282,1295] [2024-11-16 02:29:12,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 02:29:12,610 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 02:29:12,634 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/avg40-2.i[1282,1295] [2024-11-16 02:29:12,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 02:29:12,659 INFO L204 MainTranslator]: Completed translation [2024-11-16 02:29:12,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12 WrapperNode [2024-11-16 02:29:12,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 02:29:12,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 02:29:12,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 02:29:12,663 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 02:29:12,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,689 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2024-11-16 02:29:12,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 02:29:12,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 02:29:12,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 02:29:12,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 02:29:12,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,728 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5]. [2024-11-16 02:29:12,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,733 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,734 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,735 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 02:29:12,738 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 02:29:12,738 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 02:29:12,739 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 02:29:12,739 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (1/1) ... [2024-11-16 02:29:12,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 02:29:12,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:12,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 02:29:12,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 02:29:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 02:29:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 02:29:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 02:29:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 02:29:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 02:29:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 02:29:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2024-11-16 02:29:12,819 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2024-11-16 02:29:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 02:29:12,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 02:29:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 02:29:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 02:29:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 02:29:12,941 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 02:29:12,943 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 02:29:13,122 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L28: call ULTIMATE.dealloc(main_~#x~0#1.base, main_~#x~0#1.offset);havoc main_~#x~0#1.base, main_~#x~0#1.offset; [2024-11-16 02:29:13,141 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-16 02:29:13,142 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 02:29:13,156 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 02:29:13,157 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 02:29:13,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:29:13 BoogieIcfgContainer [2024-11-16 02:29:13,158 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 02:29:13,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 02:29:13,160 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 02:29:13,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 02:29:13,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:29:12" (1/3) ... [2024-11-16 02:29:13,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb5b14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:29:13, skipping insertion in model container [2024-11-16 02:29:13,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:29:12" (2/3) ... [2024-11-16 02:29:13,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb5b14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:29:13, skipping insertion in model container [2024-11-16 02:29:13,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:29:13" (3/3) ... [2024-11-16 02:29:13,169 INFO L112 eAbstractionObserver]: Analyzing ICFG avg40-2.i [2024-11-16 02:29:13,185 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 02:29:13,185 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 02:29:13,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 02:29:13,261 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31c9f53e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 02:29:13,261 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 02:29:13,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:13,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-16 02:29:13,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:13,274 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:13,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:13,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:13,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1132361884, now seen corresponding path program 1 times [2024-11-16 02:29:13,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:13,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567503527] [2024-11-16 02:29:13,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:13,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:13,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 02:29:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:13,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 02:29:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:13,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 02:29:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:13,538 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 02:29:13,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567503527] [2024-11-16 02:29:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567503527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:29:13,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:29:13,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 02:29:13,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238446282] [2024-11-16 02:29:13,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:29:13,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 02:29:13,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:13,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 02:29:13,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 02:29:13,577 INFO L87 Difference]: Start difference. First operand has 27 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 02:29:13,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:13,591 INFO L93 Difference]: Finished difference Result 50 states and 67 transitions. [2024-11-16 02:29:13,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 02:29:13,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-16 02:29:13,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:13,598 INFO L225 Difference]: With dead ends: 50 [2024-11-16 02:29:13,598 INFO L226 Difference]: Without dead ends: 23 [2024-11-16 02:29:13,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 02:29:13,603 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:13,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:13,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-16 02:29:13,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-16 02:29:13,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2024-11-16 02:29:13,637 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 29 [2024-11-16 02:29:13,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:13,637 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-11-16 02:29:13,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 02:29:13,638 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-11-16 02:29:13,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-16 02:29:13,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:13,641 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:13,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 02:29:13,642 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:13,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:13,647 INFO L85 PathProgramCache]: Analyzing trace with hash 731602688, now seen corresponding path program 1 times [2024-11-16 02:29:13,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:13,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859827791] [2024-11-16 02:29:13,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:13,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:13,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-16 02:29:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:13,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 02:29:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:13,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 02:29:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 02:29:13,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:13,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859827791] [2024-11-16 02:29:13,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859827791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:13,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529745353] [2024-11-16 02:29:13,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:13,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:13,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:13,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:13,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 02:29:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:13,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 02:29:13,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:14,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 02:29:14,018 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 02:29:14,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529745353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:29:14,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 02:29:14,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 02:29:14,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605382699] [2024-11-16 02:29:14,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:29:14,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 02:29:14,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:14,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 02:29:14,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:29:14,021 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 02:29:14,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:14,039 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2024-11-16 02:29:14,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 02:29:14,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-16 02:29:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:14,041 INFO L225 Difference]: With dead ends: 44 [2024-11-16 02:29:14,041 INFO L226 Difference]: Without dead ends: 25 [2024-11-16 02:29:14,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:29:14,044 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:14,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:14,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-16 02:29:14,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-16 02:29:14,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-11-16 02:29:14,050 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 34 [2024-11-16 02:29:14,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:14,051 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-11-16 02:29:14,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 02:29:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-16 02:29:14,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-16 02:29:14,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:14,054 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:14,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 02:29:14,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:14,259 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:14,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:14,260 INFO L85 PathProgramCache]: Analyzing trace with hash -969275553, now seen corresponding path program 1 times [2024-11-16 02:29:14,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:14,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451342849] [2024-11-16 02:29:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:14,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:14,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 02:29:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:14,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 02:29:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:14,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 02:29:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 02:29:14,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:14,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451342849] [2024-11-16 02:29:14,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451342849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:14,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708796646] [2024-11-16 02:29:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:14,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:14,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:14,460 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:14,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 02:29:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:14,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 02:29:14,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 02:29:14,559 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 02:29:14,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708796646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:29:14,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 02:29:14,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2024-11-16 02:29:14,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508519103] [2024-11-16 02:29:14,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:29:14,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 02:29:14,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:14,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 02:29:14,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:29:14,562 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:29:14,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:14,570 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2024-11-16 02:29:14,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 02:29:14,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-16 02:29:14,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:14,571 INFO L225 Difference]: With dead ends: 44 [2024-11-16 02:29:14,571 INFO L226 Difference]: Without dead ends: 27 [2024-11-16 02:29:14,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:29:14,572 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:14,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:14,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-16 02:29:14,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-16 02:29:14,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-16 02:29:14,578 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 36 [2024-11-16 02:29:14,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:14,578 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-16 02:29:14,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:29:14,578 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-16 02:29:14,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-16 02:29:14,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:14,580 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:14,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 02:29:14,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-16 02:29:14,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:14,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:14,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1262243008, now seen corresponding path program 1 times [2024-11-16 02:29:14,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:14,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445369436] [2024-11-16 02:29:14,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:14,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:14,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 02:29:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:14,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 02:29:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:14,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 02:29:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 02:29:14,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:14,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445369436] [2024-11-16 02:29:14,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445369436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:14,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757141970] [2024-11-16 02:29:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:14,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:14,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:14,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:14,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 02:29:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:15,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 02:29:15,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 02:29:15,026 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 02:29:15,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757141970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:29:15,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 02:29:15,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-16 02:29:15,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879946957] [2024-11-16 02:29:15,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:29:15,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 02:29:15,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:15,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 02:29:15,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 02:29:15,029 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:29:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:15,039 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2024-11-16 02:29:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 02:29:15,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-11-16 02:29:15,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:15,040 INFO L225 Difference]: With dead ends: 43 [2024-11-16 02:29:15,041 INFO L226 Difference]: Without dead ends: 29 [2024-11-16 02:29:15,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 02:29:15,042 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:15,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:15,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-16 02:29:15,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-16 02:29:15,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-16 02:29:15,047 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 42 [2024-11-16 02:29:15,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:15,050 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-16 02:29:15,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 02:29:15,051 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-16 02:29:15,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-16 02:29:15,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:15,053 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:15,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 02:29:15,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:15,254 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:15,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:15,255 INFO L85 PathProgramCache]: Analyzing trace with hash -103386527, now seen corresponding path program 1 times [2024-11-16 02:29:15,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:15,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907947581] [2024-11-16 02:29:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:15,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:15,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 02:29:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:15,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 02:29:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:15,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 02:29:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 02:29:15,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:15,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907947581] [2024-11-16 02:29:15,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907947581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:15,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90242852] [2024-11-16 02:29:15,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:15,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:15,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:15,391 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:15,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 02:29:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:15,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 02:29:15,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:15,501 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-16 02:29:15,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:29:15,560 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-16 02:29:15,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90242852] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:29:15,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:29:15,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2024-11-16 02:29:15,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566688147] [2024-11-16 02:29:15,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:29:15,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 02:29:15,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:15,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 02:29:15,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-16 02:29:15,565 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:29:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:15,596 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2024-11-16 02:29:15,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 02:29:15,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2024-11-16 02:29:15,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:15,597 INFO L225 Difference]: With dead ends: 60 [2024-11-16 02:29:15,597 INFO L226 Difference]: Without dead ends: 37 [2024-11-16 02:29:15,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-16 02:29:15,599 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:15,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:15,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-16 02:29:15,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-16 02:29:15,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:15,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2024-11-16 02:29:15,607 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 44 [2024-11-16 02:29:15,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:15,608 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2024-11-16 02:29:15,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:29:15,608 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2024-11-16 02:29:15,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 02:29:15,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:15,612 INFO L215 NwaCegarLoop]: trace histogram [9, 6, 5, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:15,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 02:29:15,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:15,813 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:15,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:15,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1352748959, now seen corresponding path program 2 times [2024-11-16 02:29:15,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:15,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036591107] [2024-11-16 02:29:15,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:15,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:15,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 02:29:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:15,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 02:29:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:15,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 02:29:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-16 02:29:15,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:15,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036591107] [2024-11-16 02:29:15,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036591107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:15,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703225890] [2024-11-16 02:29:15,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 02:29:15,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:15,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:15,948 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:15,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 02:29:16,037 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 02:29:16,037 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:29:16,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 02:29:16,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:16,094 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-16 02:29:16,097 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:29:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-16 02:29:16,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703225890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:29:16,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:29:16,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-16 02:29:16,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46179012] [2024-11-16 02:29:16,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:29:16,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 02:29:16,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:16,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 02:29:16,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-16 02:29:16,199 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 02:29:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:16,231 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2024-11-16 02:29:16,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 02:29:16,232 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2024-11-16 02:29:16,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:16,233 INFO L225 Difference]: With dead ends: 76 [2024-11-16 02:29:16,233 INFO L226 Difference]: Without dead ends: 51 [2024-11-16 02:29:16,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-16 02:29:16,234 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:16,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:16,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-16 02:29:16,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-16 02:29:16,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.065217391304348) internal successors, (49), 46 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:16,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2024-11-16 02:29:16,242 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 56 [2024-11-16 02:29:16,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:16,243 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2024-11-16 02:29:16,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 02:29:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2024-11-16 02:29:16,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 02:29:16,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:16,244 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 9, 6, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:16,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 02:29:16,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:16,449 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:16,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:16,450 INFO L85 PathProgramCache]: Analyzing trace with hash -968122758, now seen corresponding path program 3 times [2024-11-16 02:29:16,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:16,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723089899] [2024-11-16 02:29:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:16,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:16,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 02:29:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:16,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 02:29:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:16,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 02:29:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:16,810 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-16 02:29:16,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:16,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723089899] [2024-11-16 02:29:16,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723089899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:16,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542125909] [2024-11-16 02:29:16,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 02:29:16,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:16,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:16,813 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:16,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 02:29:16,902 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-16 02:29:16,902 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:29:16,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 02:29:16,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-16 02:29:16,951 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:29:17,021 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-16 02:29:17,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542125909] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:29:17,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:29:17,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2024-11-16 02:29:17,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604240624] [2024-11-16 02:29:17,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:29:17,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 02:29:17,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:17,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 02:29:17,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-16 02:29:17,026 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 19 states have internal predecessors, (67), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:29:17,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:17,079 INFO L93 Difference]: Finished difference Result 88 states and 103 transitions. [2024-11-16 02:29:17,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 02:29:17,079 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 19 states have internal predecessors, (67), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2024-11-16 02:29:17,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:17,080 INFO L225 Difference]: With dead ends: 88 [2024-11-16 02:29:17,080 INFO L226 Difference]: Without dead ends: 61 [2024-11-16 02:29:17,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-16 02:29:17,081 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:17,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:17,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-16 02:29:17,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-16 02:29:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.0535714285714286) internal successors, (59), 56 states have internal predecessors, (59), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2024-11-16 02:29:17,091 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 70 [2024-11-16 02:29:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:17,092 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2024-11-16 02:29:17,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 19 states have internal predecessors, (67), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:29:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2024-11-16 02:29:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 02:29:17,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:17,095 INFO L215 NwaCegarLoop]: trace histogram [21, 18, 12, 11, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:17,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 02:29:17,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:17,296 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:17,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:17,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1253591645, now seen corresponding path program 4 times [2024-11-16 02:29:17,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:17,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128162465] [2024-11-16 02:29:17,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:17,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:17,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 02:29:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:17,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 02:29:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:17,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 02:29:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2024-11-16 02:29:17,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128162465] [2024-11-16 02:29:17,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128162465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822360083] [2024-11-16 02:29:17,669 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-16 02:29:17,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:17,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:17,671 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:17,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 02:29:17,789 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-16 02:29:17,790 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:29:17,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 02:29:17,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 204 proven. 6 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-16 02:29:17,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:29:17,904 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2024-11-16 02:29:17,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822360083] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:29:17,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:29:17,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 20 [2024-11-16 02:29:17,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515548226] [2024-11-16 02:29:17,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:29:17,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-16 02:29:17,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:17,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-16 02:29:17,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-16 02:29:17,908 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:29:17,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:17,963 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2024-11-16 02:29:17,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 02:29:17,964 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 96 [2024-11-16 02:29:17,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:17,966 INFO L225 Difference]: With dead ends: 106 [2024-11-16 02:29:17,967 INFO L226 Difference]: Without dead ends: 71 [2024-11-16 02:29:17,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-16 02:29:17,968 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:17,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 250 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:17,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-16 02:29:17,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-16 02:29:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 66 states have (on average 1.0454545454545454) internal successors, (69), 66 states have internal predecessors, (69), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:17,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2024-11-16 02:29:17,978 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 96 [2024-11-16 02:29:17,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:17,978 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2024-11-16 02:29:17,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:29:17,978 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2024-11-16 02:29:17,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 02:29:17,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:17,981 INFO L215 NwaCegarLoop]: trace histogram [21, 18, 13, 12, 7, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:17,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 02:29:18,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:18,182 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:18,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:18,183 INFO L85 PathProgramCache]: Analyzing trace with hash -165510272, now seen corresponding path program 5 times [2024-11-16 02:29:18,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:18,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355583816] [2024-11-16 02:29:18,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:18,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:18,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 02:29:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:18,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 02:29:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:18,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 02:29:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:18,571 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-11-16 02:29:18,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:18,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355583816] [2024-11-16 02:29:18,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355583816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:18,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189238418] [2024-11-16 02:29:18,572 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-16 02:29:18,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:18,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:18,574 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:18,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 02:29:19,168 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-11-16 02:29:19,168 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:29:19,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 02:29:19,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 198 proven. 42 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-16 02:29:19,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:29:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-16 02:29:19,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189238418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:29:19,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:29:19,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 29 [2024-11-16 02:29:19,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809826534] [2024-11-16 02:29:19,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:29:19,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-16 02:29:19,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:19,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-16 02:29:19,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2024-11-16 02:29:19,457 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:29:19,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:19,519 INFO L93 Difference]: Finished difference Result 132 states and 151 transitions. [2024-11-16 02:29:19,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-16 02:29:19,522 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 106 [2024-11-16 02:29:19,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:19,523 INFO L225 Difference]: With dead ends: 132 [2024-11-16 02:29:19,523 INFO L226 Difference]: Without dead ends: 89 [2024-11-16 02:29:19,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2024-11-16 02:29:19,524 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:19,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 266 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-16 02:29:19,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-16 02:29:19,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 84 states have (on average 1.0357142857142858) internal successors, (87), 84 states have internal predecessors, (87), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:19,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 93 transitions. [2024-11-16 02:29:19,536 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 93 transitions. Word has length 106 [2024-11-16 02:29:19,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:19,537 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 93 transitions. [2024-11-16 02:29:19,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:29:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 93 transitions. [2024-11-16 02:29:19,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-16 02:29:19,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:19,539 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 14, 13, 7, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:19,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-16 02:29:19,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-16 02:29:19,740 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:19,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:19,740 INFO L85 PathProgramCache]: Analyzing trace with hash -848063769, now seen corresponding path program 6 times [2024-11-16 02:29:19,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:19,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641828330] [2024-11-16 02:29:19,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:19,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:20,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 02:29:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:20,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 02:29:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:20,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 02:29:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:20,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 2034 trivial. 0 not checked. [2024-11-16 02:29:20,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:20,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641828330] [2024-11-16 02:29:20,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641828330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:20,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248018424] [2024-11-16 02:29:20,171 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-16 02:29:20,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:20,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:20,173 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:20,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 02:29:20,417 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-11-16 02:29:20,417 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:29:20,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-16 02:29:20,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:20,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 908 proven. 42 refuted. 0 times theorem prover too weak. 1266 trivial. 0 not checked. [2024-11-16 02:29:20,528 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:29:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 2174 trivial. 0 not checked. [2024-11-16 02:29:20,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248018424] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:29:20,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:29:20,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 30 [2024-11-16 02:29:20,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530007438] [2024-11-16 02:29:20,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:29:20,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 02:29:20,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:20,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 02:29:20,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2024-11-16 02:29:20,742 INFO L87 Difference]: Start difference. First operand 89 states and 93 transitions. Second operand has 30 states, 30 states have (on average 2.933333333333333) internal successors, (88), 30 states have internal predecessors, (88), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:29:20,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:20,815 INFO L93 Difference]: Finished difference Result 166 states and 182 transitions. [2024-11-16 02:29:20,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-16 02:29:20,816 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.933333333333333) internal successors, (88), 30 states have internal predecessors, (88), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 156 [2024-11-16 02:29:20,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:20,816 INFO L225 Difference]: With dead ends: 166 [2024-11-16 02:29:20,816 INFO L226 Difference]: Without dead ends: 107 [2024-11-16 02:29:20,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2024-11-16 02:29:20,818 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:20,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:29:20,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-16 02:29:20,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-16 02:29:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 102 states have (on average 1.0294117647058822) internal successors, (105), 102 states have internal predecessors, (105), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2024-11-16 02:29:20,826 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 156 [2024-11-16 02:29:20,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:20,826 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2024-11-16 02:29:20,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.933333333333333) internal successors, (88), 30 states have internal predecessors, (88), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:29:20,826 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2024-11-16 02:29:20,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-16 02:29:20,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:20,828 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 15, 15, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:20,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-16 02:29:21,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 02:29:21,034 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:21,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:21,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1016397682, now seen corresponding path program 7 times [2024-11-16 02:29:21,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:21,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794723840] [2024-11-16 02:29:21,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:21,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:21,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 02:29:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:21,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 02:29:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:21,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 02:29:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:21,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:29:21,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:21,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794723840] [2024-11-16 02:29:21,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794723840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:21,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25350098] [2024-11-16 02:29:21,509 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-16 02:29:21,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:21,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:21,512 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:21,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-16 02:29:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:21,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 02:29:21,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:21,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:29:21,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:29:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:29:22,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25350098] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:29:22,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:29:22,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2024-11-16 02:29:22,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546183845] [2024-11-16 02:29:22,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:29:22,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-16 02:29:22,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:22,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-16 02:29:22,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-16 02:29:22,135 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:29:22,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:22,184 INFO L93 Difference]: Finished difference Result 214 states and 237 transitions. [2024-11-16 02:29:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-16 02:29:22,185 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 174 [2024-11-16 02:29:22,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:22,186 INFO L225 Difference]: With dead ends: 214 [2024-11-16 02:29:22,186 INFO L226 Difference]: Without dead ends: 139 [2024-11-16 02:29:22,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-16 02:29:22,188 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:22,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:22,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-16 02:29:22,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-16 02:29:22,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 134 states have (on average 1.0223880597014925) internal successors, (137), 134 states have internal predecessors, (137), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:22,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 143 transitions. [2024-11-16 02:29:22,206 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 143 transitions. Word has length 174 [2024-11-16 02:29:22,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:22,207 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 143 transitions. [2024-11-16 02:29:22,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:29:22,207 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 143 transitions. [2024-11-16 02:29:22,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-16 02:29:22,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:22,212 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 31, 30, 15, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:22,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-16 02:29:22,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-16 02:29:22,413 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:22,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:22,414 INFO L85 PathProgramCache]: Analyzing trace with hash 697572478, now seen corresponding path program 8 times [2024-11-16 02:29:22,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:22,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952021592] [2024-11-16 02:29:22,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:22,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:23,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 02:29:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:23,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 02:29:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:23,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 02:29:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:23,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3132 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:29:23,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:23,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952021592] [2024-11-16 02:29:23,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952021592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:23,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083534286] [2024-11-16 02:29:23,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 02:29:23,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:23,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:23,479 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:23,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-16 02:29:23,693 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 02:29:23,693 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:29:23,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-16 02:29:23,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:23,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3132 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:29:23,816 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:29:24,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3132 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-16 02:29:24,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083534286] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:29:24,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:29:24,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 43 [2024-11-16 02:29:24,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885932094] [2024-11-16 02:29:24,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:29:24,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-16 02:29:24,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:24,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-16 02:29:24,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2024-11-16 02:29:24,519 INFO L87 Difference]: Start difference. First operand 139 states and 143 transitions. Second operand has 43 states, 43 states have (on average 2.5348837209302326) internal successors, (109), 43 states have internal predecessors, (109), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:29:24,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:24,561 INFO L93 Difference]: Finished difference Result 234 states and 251 transitions. [2024-11-16 02:29:24,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-16 02:29:24,563 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.5348837209302326) internal successors, (109), 43 states have internal predecessors, (109), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 206 [2024-11-16 02:29:24,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:24,564 INFO L225 Difference]: With dead ends: 234 [2024-11-16 02:29:24,564 INFO L226 Difference]: Without dead ends: 159 [2024-11-16 02:29:24,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 386 SyntacticMatches, 22 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2024-11-16 02:29:24,565 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:24,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:24,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-16 02:29:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-11-16 02:29:24,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 154 states have (on average 1.0194805194805194) internal successors, (157), 154 states have internal predecessors, (157), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:24,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 163 transitions. [2024-11-16 02:29:24,578 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 163 transitions. Word has length 206 [2024-11-16 02:29:24,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:24,578 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 163 transitions. [2024-11-16 02:29:24,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.5348837209302326) internal successors, (109), 43 states have internal predecessors, (109), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 02:29:24,578 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 163 transitions. [2024-11-16 02:29:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-16 02:29:24,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:24,581 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 41, 40, 15, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:24,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-16 02:29:24,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 02:29:24,785 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:24,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:24,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1483101812, now seen corresponding path program 9 times [2024-11-16 02:29:24,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:24,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696455488] [2024-11-16 02:29:24,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:24,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:25,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 02:29:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:25,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 02:29:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:25,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 02:29:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3842 backedges. 0 proven. 1116 refuted. 0 times theorem prover too weak. 2726 trivial. 0 not checked. [2024-11-16 02:29:25,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:25,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696455488] [2024-11-16 02:29:25,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696455488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:25,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043117966] [2024-11-16 02:29:25,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 02:29:25,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:25,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:25,372 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:25,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-16 02:29:25,895 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-16 02:29:25,895 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:29:25,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-16 02:29:25,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3842 backedges. 906 proven. 210 refuted. 0 times theorem prover too weak. 2726 trivial. 0 not checked. [2024-11-16 02:29:25,949 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:29:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3842 backedges. 906 proven. 210 refuted. 0 times theorem prover too weak. 2726 trivial. 0 not checked. [2024-11-16 02:29:26,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043117966] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:29:26,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:29:26,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 32 [2024-11-16 02:29:26,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160943274] [2024-11-16 02:29:26,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:29:26,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 02:29:26,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:26,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 02:29:26,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2024-11-16 02:29:26,275 INFO L87 Difference]: Start difference. First operand 159 states and 163 transitions. Second operand has 32 states, 32 states have (on average 2.84375) internal successors, (91), 32 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:29:26,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:26,314 INFO L93 Difference]: Finished difference Result 264 states and 289 transitions. [2024-11-16 02:29:26,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-16 02:29:26,315 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.84375) internal successors, (91), 32 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 226 [2024-11-16 02:29:26,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:26,317 INFO L225 Difference]: With dead ends: 264 [2024-11-16 02:29:26,317 INFO L226 Difference]: Without dead ends: 191 [2024-11-16 02:29:26,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2024-11-16 02:29:26,319 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:26,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 309 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:26,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-16 02:29:26,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-11-16 02:29:26,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.0161290322580645) internal successors, (189), 186 states have internal predecessors, (189), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:26,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 195 transitions. [2024-11-16 02:29:26,328 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 195 transitions. Word has length 226 [2024-11-16 02:29:26,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:26,328 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 195 transitions. [2024-11-16 02:29:26,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.84375) internal successors, (91), 32 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 02:29:26,329 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 195 transitions. [2024-11-16 02:29:26,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-16 02:29:26,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:26,332 INFO L215 NwaCegarLoop]: trace histogram [93, 90, 41, 40, 15, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:26,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-16 02:29:26,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 02:29:26,533 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:26,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:26,533 INFO L85 PathProgramCache]: Analyzing trace with hash 233506436, now seen corresponding path program 10 times [2024-11-16 02:29:26,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:26,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908786570] [2024-11-16 02:29:26,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:26,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:27,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 02:29:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:27,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-16 02:29:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:27,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-11-16 02:29:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:27,990 INFO L134 CoverageAnalysis]: Checked inductivity of 10418 backedges. 0 proven. 4780 refuted. 0 times theorem prover too weak. 5638 trivial. 0 not checked. [2024-11-16 02:29:27,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:27,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908786570] [2024-11-16 02:29:27,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908786570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:27,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23816785] [2024-11-16 02:29:27,992 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-16 02:29:27,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:27,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:27,994 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:27,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-16 02:29:28,276 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-16 02:29:28,276 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:29:28,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-16 02:29:28,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:29:28,378 INFO L134 CoverageAnalysis]: Checked inductivity of 10418 backedges. 3846 proven. 930 refuted. 0 times theorem prover too weak. 5642 trivial. 0 not checked. [2024-11-16 02:29:28,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:29:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 10418 backedges. 0 proven. 4780 refuted. 0 times theorem prover too weak. 5638 trivial. 0 not checked. [2024-11-16 02:29:29,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23816785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:29:29,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:29:29,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 42 [2024-11-16 02:29:29,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29568332] [2024-11-16 02:29:29,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:29:29,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-16 02:29:29,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:29:29,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-16 02:29:29,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2024-11-16 02:29:29,098 INFO L87 Difference]: Start difference. First operand 191 states and 195 transitions. Second operand has 42 states, 42 states have (on average 2.619047619047619) internal successors, (110), 42 states have internal predecessors, (110), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 02:29:29,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:29:29,147 INFO L93 Difference]: Finished difference Result 316 states and 335 transitions. [2024-11-16 02:29:29,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-16 02:29:29,148 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.619047619047619) internal successors, (110), 42 states have internal predecessors, (110), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 322 [2024-11-16 02:29:29,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:29:29,149 INFO L225 Difference]: With dead ends: 316 [2024-11-16 02:29:29,149 INFO L226 Difference]: Without dead ends: 211 [2024-11-16 02:29:29,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 619 SyntacticMatches, 22 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2024-11-16 02:29:29,151 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:29:29,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:29:29,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-16 02:29:29,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-16 02:29:29,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.0145631067961165) internal successors, (209), 206 states have internal predecessors, (209), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 02:29:29,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 215 transitions. [2024-11-16 02:29:29,159 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 215 transitions. Word has length 322 [2024-11-16 02:29:29,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:29:29,160 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 215 transitions. [2024-11-16 02:29:29,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.619047619047619) internal successors, (110), 42 states have internal predecessors, (110), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 02:29:29,160 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 215 transitions. [2024-11-16 02:29:29,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-16 02:29:29,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:29:29,165 INFO L215 NwaCegarLoop]: trace histogram [123, 120, 41, 40, 15, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:29:29,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-16 02:29:29,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-16 02:29:29,365 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:29:29,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:29:29,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1719568114, now seen corresponding path program 11 times [2024-11-16 02:29:29,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:29:29,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672339510] [2024-11-16 02:29:29,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:29:29,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:29:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:29,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 02:29:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:29,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 02:29:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:29,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-11-16 02:29:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:29:30,017 INFO L134 CoverageAnalysis]: Checked inductivity of 16868 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 16658 trivial. 0 not checked. [2024-11-16 02:29:30,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:29:30,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672339510] [2024-11-16 02:29:30,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672339510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:29:30,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773255619] [2024-11-16 02:29:30,018 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-16 02:29:30,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:29:30,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:29:30,021 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:29:30,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process